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Maine Senate Fundraising

Incumbent Susan Collins is up for election in Maine's Senate in 2026. This race is rated as Toss Up. We estimate that $13.16M has been spent on this race over the last two years. Democrats have outspent Republicans by $1.15M over that time period, per our estimates.

Cumulative Spending by Party

Note: Recent data is often incomplete due to lags between spending and disclosure